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Cheap flights from Louisville to Sydney from $558

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Delta Logo
10:45 am - 6:35 amSDF-SYD
29h 50m2 stops
Delta Logo
10:25 am - 12:01 amSYD-SDF
28h 36m2 stops
$1,081Delta
Find Deal
Wed, Sep 24 - Sun, Oct 12
Delta Logo
9:30 am - 6:35 amSDF-SYD
31h 05m2 stops
Delta Logo
10:25 am - 10:54 pmSYD-SDF
27h 29m2 stops
$1,082Delta
Find Deal
Wed, Sep 24 - Sun, Oct 12
United Airlines Logo
1:58 pm - 7:55 amSDF-SYD
26h 57m2 stops
United Airlines Logo
11:50 am - 7:54 pmSYD-SDF
23h 04m1 stop
$1,229United Airlines
Find Deal
Fri, Oct 24 - Fri, Oct 31
United Airlines Logo
8:00 am - 9:15 amSDF-SYD
34h 15m2 stops
United Airlines Logo
11:50 am - 9:57 pmSYD-SDF
26h 07m1 stop
$1,230United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Logo
8:10 pm - 7:55 pmSDF-SYD
32h 45m2 stops
Logo
5:20 am - 2:02 pmSYD-SDF
47h 42m3 stops
$1,542
Find Deal
Sun, Oct 26 - Sun, Nov 2
Logo
8:10 pm - 7:25 amSDF-SYD
44h 15m1 stop
Logo
5:45 pm - 7:15 pmSYD-SDF
41h 30m1 stop
$1,559
Find Deal
Sun, Oct 26 - Sun, Nov 2
Qantas Airways Logo
6:46 pm - 6:55 amSDF-SYD
21h 09m1 stop
Qantas Airways Logo
2:05 pm - 5:38 pmSYD-SDF
19h 33m1 stop
$2,092Qantas Airways
Find Deal
Sat, Nov 1 - Sat, Nov 8
Qantas Airways Logo
6:44 pm - 6:55 amSDF-SYD
22h 11m1 stop
Qantas Airways Logo
1:10 pm - 5:27 pmSYD-SDF
19h 17m1 stop
$2,280Qantas Airways
Find Deal
Wed, Sep 24 - Sun, Oct 12
Air Canada Logo
3:20 pm - 9:35 amSDF-SYD
26h 15m2 stops
Air Canada Logo
11:20 am - 9:59 amSYD-SDF
38h 39m3 stops
$2,555Air Canada
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Thu, Nov 13 - Mon, Nov 17
Air Canada Logo
5:57 pm - 9:35 amSDF-SYD
48h 38m3 stops
Air Canada Logo
11:20 am - 8:44 pmSYD-SDF
25h 24m2 stops
$2,674Air Canada
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Sat, Nov 1 - Sat, Nov 8

Delta flights from Louisville to Sydney

Our best Delta deals on Louisville to Sydney flight tickets
Delta
Sep 24
SDF10:45 amLouisville Intl
29h 50m
2 stops
SYD6:35 amSydney Kingsford Smith
Oct 12
SYD10:25 amSydney Kingsford Smith
28h 36m
2 stops
SDF12:01 amLouisville Intl
$1,081
Find similar
Delta
Sep 24
SDF9:30 amLouisville Intl
31h 05m
2 stops
SYD6:35 amSydney Kingsford Smith
Oct 12
SYD10:25 amSydney Kingsford Smith
27h 29m
2 stops
SDF10:54 pmLouisville Intl
$1,082
Find similar
Delta
Oct 4
SDF6:00 amLouisville Intl
34h 35m
2 stops
SYD6:35 amSydney Kingsford Smith
Oct 11
SYD10:25 amSydney Kingsford Smith
28h 36m
2 stops
SDF12:01 amLouisville Intl
$1,404
Find similar

United Airlines flights from Louisville to Sydney

Our best United Airlines deals on Louisville to Sydney flight tickets
United Airlines
Sep 24
SDF1:59 pmLouisville Intl
27h 01m
2 stops
SYD7:00 amSydney Kingsford Smith
Oct 12
SYD10:30 amSydney Kingsford Smith
24h 27m
2 stops
SDF7:57 pmLouisville Intl
$1,081
Find similar
United Airlines
Sep 13
SDF3:30 pmLouisville Intl
49h 30m
2 stops
SYD7:00 amSydney Kingsford Smith
Sep 20
SYD10:20 amSydney Kingsford Smith
25h 40m
2 stops
SDF10:00 pmLouisville Intl
$1,146
Find similar
United Airlines
Oct 24
SDF1:58 pmLouisville Intl
26h 57m
2 stops
SYD7:55 amSydney Kingsford Smith
Oct 31
SYD11:50 amSydney Kingsford Smith
23h 04m
1 stop
SDF7:54 pmLouisville Intl
$1,229
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

10:45 am-6:35 am

2 stops29h 50m

Sydney Kingsford Smith

Sun 10/12

10:25 am-12:01 am

2 stops28h 36m

$1,081

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

9:30 am-6:35 am

2 stops31h 05m

Sydney Kingsford Smith

Sun 10/12

10:25 am-10:54 pm

2 stops27h 29m

$1,082

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 10/24

1:58 pm-7:55 am

2 stops26h 57m

Sydney Kingsford Smith

Fri 10/31

11:50 am-7:54 pm

1 stop23h 04m

$1,229

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 11/1

8:00 am-9:15 am

2 stops34h 15m

Sydney Kingsford Smith

Sat 11/8

11:50 am-9:57 pm

1 stop26h 07m

$1,230

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 10/26

8:10 pm-7:55 pm

2 stops32h 45m

Sydney Kingsford Smith

Sun 11/2

5:20 am-2:02 pm

3 stops47h 42m

$1,542

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 10/26

8:10 pm-7:25 am

1 stop44h 15m

Sydney Kingsford Smith

Sun 11/2

5:45 pm-7:15 pm

1 stop41h 30m

$1,559

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 11/1

6:46 pm-6:55 am

1 stop21h 09m

Sydney Kingsford Smith

Sat 11/8

2:05 pm-5:38 pm

1 stop19h 33m

$2,092

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

6:44 pm-6:55 am

1 stop22h 11m

Sydney Kingsford Smith

Sun 10/12

1:10 pm-5:27 pm

1 stop19h 17m

$2,280

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 11/13

3:20 pm-9:35 am

2 stops26h 15m

Sydney Kingsford Smith

Mon 11/17

11:20 am-9:59 am

3 stops38h 39m

$2,555

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 11/1

5:57 pm-9:35 am

3 stops48h 38m

Sydney Kingsford Smith

Sat 11/8

11:20 am-8:44 pm

2 stops25h 24m

$2,674

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, April is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,110. If you are unable to visit Sydney during the month of April, then departing from Louisville during the month March is also very affordable. Most momondo users find prices during this month for around $1,159.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Louisville to Sydney is on a Wednesday when prices can be found for as low as $1,260. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $2,104.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from Louisville to Sydney at noon for as low as $1,343. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the morning, with an average ticket price of $1,798. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Direct flights

None
There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.
Search flight deals

  • How far is Louisville Intl to Sydney Kingsford Smith by plane?

    A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 21h 09m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $930Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
DeltaPriceFrom $979Free CancellationRating
7.9
7,960 reviews
Search Delta flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Randwick
Coogee
Cronulla
Lithgow
Penrith
Manly
Leura
Charlestown
Terrigal
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

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